求出公共子序列  要求最长  字典序最小 枚举第一串的所有子串   然后对每一个串做KMP.找到目标子串 学会了   strncpy函数的使用   我已可入灵魂 #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> using namespace std; char str[20][70]; char tmp[70],ans[70]; int f[70];…

题目:http://poj.org/problem?id=3080 水题,暴搜 #include <iostream> #include<cstdio> #include<cstring> #include<cstdlib> #include<stack> #include<queue> #include<iomanip> #include<cmath> #include<map> #include…

[题目链接] http://poj.org/problem?id=3080 [题目大意] 求k个串的最长公共子串,如果存在多个则输出字典序最小,如果长度小于3则判断查找失败. [题解] 将所有字符串通过拼接符拼成一个串,做一遍后缀数组,二分答案,对于二分所得值,将h数组大于这个值的相邻元素分为一组,判断组内元素是否覆盖全字典,是则答案成立,对于答案扫描sa,输出第一个扫描到的子串即可. [代码] #include <cstdio> #include <cstring> #inclu…

题意:给出m个字符串,找出其中的最长公共子序列,如果相同长度的有多个,输出按字母排序中的第一个. 思路:数据小,因此枚举第一个字符串的所有子字符串s,再一个个比较,是否为其它字符串的字串.判断是否为字串的时候,将s的字符依次与其他字符串的字符比较. #include <iostream> #include <stdio.h> #include <string.h> #include <stack> #include <algorithm> usi…

<题目链接> 题目大意: 就是求k个长度为60的字符串的最长连续公共子串,2<=k<=10 限制条件: 1.  最长公共串长度小于3输出   no significant commonalities 2.  若出现等长的最长的子串,则输出字典序最小的串 解题分析: 将第一个字串的所有子串枚举出来,然后用KMP快速判断该子串是否在所有主串中出现,如果都出现过,那么就按该子串的长度和字典序,不断更新答案,直到得到最终的最优解. #include <cstdio> #incl…

POJ 3080 Blue Jeans (求最长公共字符串) Description The Genographic Project is a research partnership between IBM and The National Geographic Society that is analyzing DNA from hundreds of thousands of contributors to map how the Earth was populated. As an IB…

Blue Jeans Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 20966   Accepted: 9279 Description The Genographic Project is a research partnership between IBM and The National Geographic Society that is analyzing DNA from hundreds of thousa…

Blue Jeans  Time Limit: 1000MS        Memory Limit: 65536K Total Submissions: 21078        Accepted: 9340 Description The Genographic Project is a research partnership between IBM and The National Geographic Society that is analyzing DNA from hundred…

Description Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcdef". If we think of concatenation as multiplication, exponentiation by a non-negative inte…

点击打开链接 Blue Jeans Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 10243   Accepted: 4347 Description The Genographic Project is a research partnership between IBM and The National Geographic Society that is analyzing DNA from hundreds of…